Members of the nation’s largest Presbyterian denomination on Friday voted against a proposal that would have created a path to same-sex marriage ceremonies in the church.

After more than three hours of debate at the Presbyterian Church (USA)’s biennial General Assembly in Pittsburgh, voters struck down a proposal to legalize same-sex marriage, 338-308; no voters abstained.

The proposal would have changed the church’s Book of Order to define marriage as between “two people.” It would have required approval by a majority of the church’s 173 presbyteries, or regional governing bodies, in order to become final.